<?php

error_reporting(E_ALL);

Yii::import('gii.components.Pear.*');
require_once 'Text/Diff.php';
require_once 'Text/Diff/Renderer.php';
require_once 'Text/Diff/Renderer/inline.php';

class TextDiff extends CComponent
{
    public static function compare($lines1, $lines2)
    {
        if (is_string($lines1))
            $lines1 = explode("\n", $lines1);
        if (is_string($lines2))
            $lines2 = explode("\n", $lines2);
        $diff = new Text_Diff('auto', array($lines1, $lines2));
        $renderer = new Text_Diff_Renderer_inline();
        return $renderer->render($diff);
    }
}